Intermarket analysis wasn't always how analysts looked at the markets. But once commodities and financial markets entwined, traders needed a new way to analyze market moves. Here is John Murphy's view on how and why that happened.

Originally published in our 2007 "Agents of Change" special issue, this piece chronicles Leo Melamed's involvement in the futures industry from the time when eggs was the Mercs biggest contract to today's cash-settled, electronic trading environment.